BT-611M Beacon Tester

BT-611M in operation

Technical description

BT-611M Tester provides:

Measured Parameter Measured Value Accuracy
C-S T.008 BT-611 M
Frequency 406 MHz 406000…406100 kHz ±100 Hz Δ 406 = ±20.3Hz
121.5 MHz 121495…121505 kHz - Δ121 = ±21.6 Hz
Frequency stability measuring resolution <1х10E-9 1х10E-10 δFS= +3,88×10E-11
Phase deviation ±(63±6.3)° ±2.3° ΔФ=±0.8°
Deviation Trise/Tfall time 150±100 μs ±25 μs Δτ = ±10 μs
Asymmetry < 5% ±1% δAS= ±0.8%
Bit rate 400±4 bit/s ±0.6 bit/s Δ = ±0.18 BR bit/s
Burst duration (440±4,4) ms
(520±5.2) ms
±1 ms Δ = −80 BD μs
Preamble duration limiting error (160±1,6)ms ±1 ms Δ = −60 PD μs
Burst repetition period 47.5…54.5 s ±10ms ΔRP = ±10 ms
Input power 406 MHz 3.1…8 W ±10% δP406= ±10%
406 MHz power rise time 5 ms ±0.5 ms ΔPR = ±0.5 ms
Input power 121.5 MHz 20 mW…150 mW - δM121= ±10%

Operating environment

• Operating temperature + 10°C...40°C;

• Relative humidity up to 95% at 25°C.

Storage conditions

• Temperature - 40°C... 50°C;

• Humidity up to 90% at 25°C (non condensing)


• Net 2.8 kg; (measuring unit)

• Gross 3.6 kg (antenna included)


• Measuring unit 252 х 260 х 69 mm

• Antenna (when assembled): Height 280 mm Diameter 260 mm



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